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Laser-etched positioning grid
They are designed to provide an ongoing positive seal to the air box
Threebond high temp silicone liquid gasket products have been tested in extreme conditions on racetracks worldwide with proven results
and provides extra protection on cylinder walls
Pro-X Piston Kit Yamaha YZ250F / WR250F - 76.95mm 01.2417.A EN250 Laser-etched positioning gridMade in Japan Part Number: 01. 2417. A Piston Size: 76. 95mm All ProX Piston Kits are supplied complete with Piston Rings, Wrist Pin and Circlips, ready to install! ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low expansion, low friction piston alloy is used as is used for all major Japanese engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your